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38332RKP

Universal indicator paper. This paper is used to measure the strength of an acid or an alkali. When the paper is dipped into a solution, it changes colour depending on the solution's pH. pH is a logarithmic measure of hydrogen ion concentration. Acid solutions have a high concentration of hydrogen ions, while alkali solutions have a low concentration of hydrogen ions.

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Universal indicator paper. This paper is used to measure the strength of an acid or an alkali. When the paper is dipped into a solution, it changes colour depending on the solution's pH. pH is a logarithmic measure of hydrogen ion concentration. Acid solutions have a high concentration of hydrogen ions, while alkali solutions have a low concentration of hydrogen ions.